FIG. 6.

Schematic representation of the proposed cell surface disposition of the A. cellulolyticus cellulosomal components identified. The GH9B enzyme and other putative dockerin-containing enzymes are incorporated into the ScaA scaffoldin by virtue of their interaction with the ScaA cohesins. ScaB plays the role of an adaptor protein that mediates between the dockerin of the primary scaffoldin, ScaA, and the cohesins of the anchoring scaffoldin, ScaC. The entire complex appears to be cell associated via the resident SLH module of ScaC.